1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9134e05dcbae594ba97f9993c3b772592ef59a0f77f3845bbbe8a69cb032415. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7d3c977f-4c62-4a75-94c5-1bd570695b41.json and https://artists.proofprofile.net/proofs/artist/7d3c977f-4c62-4a75-94c5-1bd570695b41.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Veni Creator Spiritus: 1. Puro e tranquillo
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf6fcdfbc68895f4a56591e4535af56faa854ac47759d87c70776e0016e658d4. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUAB00450521.
Enyato I: Chorale and Ecstatic Dance: 1. Sereno
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81acb4a5be36c5494e6a03ade3011e6cec32642c5ee148335919661dfc3d3b11. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUAB00450527.
Enyato I: Chorale and Ecstatic Dance: 2. Molto Animato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb617f8627fc99715197dd02fd0a3ef764d8a2937bdb5e1e7812f464edd85bb2f. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUAB00450528.
Concerto for Guitar and Strings, "Arafura Dances": 1. First Maninya
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e4c3152162580427c862ada45f817b6ca93fc13ae430fc40e02bfc60521f29d. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUAB00450523.
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Concerto for Guitar and Strings, "Arafura Dances": 2. Arafura Arioso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x245ae476b5eb3e4991a3f75d659ec455c6fc5b21217bd956d4152baaf206bb8f. Chain 2 (Bitcoin): anchored in block 960422 (2026-07-31T15:27:29Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUAB00450524.
Concerto for Guitar and Strings, "Arafura Dances": 3. Second Maninya
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x429e723a22623a1e4e0c5915a46f8519491714c5cb0e4923b79a9d90b3a7d156. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUAB00450525.
Women of Note: A Century of Australian Composers
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6b976017a8fb9cb7233912524e3fc910cab6eccaef8427d35051a46e06cc655. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUAB00950050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6b976017a8fb9cb7233912524e3fc910cab6eccaef8427d35051a46e06cc655. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUAB00950050.
Forty Reasons To Be Cheerful (Festive Fanfare)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd84ced6365c263393520e48e0d131eef7b7ddb9f716ba337b63c201baeb867b0. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUAB01550028.